Cristiano Ronaldo Checks Bloody Face with Phone After Head Injury

Cristiano Ronaldo faced off with a cleat and won a goal, but lost some skin in the process -- which seemed to piss him off after a quick mirror check on the nearest phone possible.

The Real Madrid striker suffered a nasty injury Sunday in the final few minutes of his team's match against Deportivo -- going in for a header, scoring ... but walking away with a bloody face from a cut near his eye.

As he left the pitch, Ronaldo used a team medic's phone to check out the damage to his second crown jewel (feet first, of course) -- and couldn't help but look annoyed AF.

He certainly paid the price for Real Madrid's 6-1 lead in the 84th minute. But hey, the goal itself looked pretty sick from our POV ... for whatever that's worth.